For the experiments, we have retained the UCI [1]} dataset, which is heavily used by the HAR community as a benchmark. This dataset was collected with 30 volunteers using a Samsung Galaxy S II placed on the waist. One example of data contains 128 recordings of accelerometer and gyroscope (both 3 dimensions). There are 6 classes in the dataset (number of examples per class are in brackets): 0 – Walking (1722), 1 – Walking Upstairs (1544), 2 – Walking Downstairs (1406), 3 – Sitting (1777), 4 – Standing (1906), 5 – Lying (1944).
